EP3330068B1 - Device for dewatering bulk or flowable material - Google Patents
Device for dewatering bulk or flowable material Download PDFInfo
- Publication number
- EP3330068B1 EP3330068B1 EP17199701.8A EP17199701A EP3330068B1 EP 3330068 B1 EP3330068 B1 EP 3330068B1 EP 17199701 A EP17199701 A EP 17199701A EP 3330068 B1 EP3330068 B1 EP 3330068B1
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- EP
- European Patent Office
- Prior art keywords
- segments
- holes
- shell pipe
- pipe
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000463 material Substances 0.000 title claims description 28
- 230000009969 flowable effect Effects 0.000 title description 2
- 239000002023 wood Substances 0.000 claims description 4
- 230000010006 flight Effects 0.000 claims 1
- 238000012545 processing Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 238000009418 renovation Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
- B30B9/124—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing using a rotatable and axially movable screw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/26—Permeable casings or strainers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/086—Presses with means for extracting or introducing gases or liquids in the mat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C7/00—Digesters
- D21C7/06—Feeding devices
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
- F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/24—Wood particles, e.g. shavings, cuttings, saw dust
Definitions
- the invention relates to a device for dewatering pourable or flowable feed material, for example wood chips, by compacting it, with a housing with a casing tube in which a shaft with circumferential helices rotates about an axis of rotation, the feed material being transported and compacted through the housing and the pressate is led out of the device through openings in the jacket tube and an inner tube is provided, the inner tube is constructed from segments which have openings, the segments resting with their outer surface directly on the inner surface of the jacket tube and the openings of the segments the openings of the jacket tube, the openings of the segments having a smaller cross section than the openings of the jacket tube.
- Such devices are, for example, from DE 20 2007 007 038 U1 known, which discloses the features of the preamble of claim 1, these devices usually having a feeding device, for example in the form of a shaft. Special versions are used to feed wood chips into a pulp digester in the pulp industry and are often referred to as stuffing screws in this context. There are also applications, among other things, as a feed device for cookers in the wood pulp industry. Generally, a commodity is pumped from an area of lower pressure to an area of higher pressure or vice versa. These devices therefore also serve as a pressure lock.
- the compression of the feed material also serves to create a highly compacted plug of material, which seals the inlet opening from the pressurized system of a cooker.
- a highly compressed plug of material is also created, which in this case absorbs the impregnation chemicals when it relaxes.
- the high compression of the feed material with the result of high contact pressure on the inside of the screw casing results in a high level of wear on both the screw helix and the casing tube, so that such devices have to be renewed or upgraded at regular intervals. This results in high costs and longer downtimes in production.
- the worn housings are often renovated using build-up welding and mechanical processing.
- the aim of the invention is to provide a device that is significantly more cost-effective and avoids the above disadvantages.
- the replaceable parts become smaller and can be transported more easily. Because the segments rest directly on the inner surface of the casing tube, these parts are supported over the entire surface and can therefore also be manufactured with very small wall thicknesses.
- Casing pipe and segments can also be made from different materials, which means that the casing pipe can absorb the forces and the segments can be made of a hard, brittle and therefore wear-resistant material.
- the segments can remain largely unprocessed. This eliminates the need for large-scale, cost-intensive processing of both the external and internal surfaces.
- the openings can also be cast, which means that subsequent, complex drilling, especially cutting drilling, becomes unnecessary. This also makes it possible to use harder materials that can no longer be processed using machining processes. By matching the openings of the segments with the openings of the casing pipe, optimal drainage is achieved.
- a favorable embodiment of the invention is characterized in that the casing tube is cylindrical, although it can alternatively be conical. In this way, the device can be conveniently adapted to the needs of production and the screw required for it.
- a favorable development of the invention is characterized in that the inner tube consists of at least 4, preferably 6 - 8 segments in the circumferential direction. This means that areas that are less worn can be left in place and only areas that are more heavily worn can be replaced.
- An advantageous embodiment of the invention is characterized in that the inner tube consists of at least 2, preferably 3 - 4 up to 6 segments in the longitudinal direction, corresponding to the direction of the axis of rotation. On the one hand, this makes assembly much easier, but on the other hand, little worn areas can be left and only more heavily worn areas, especially in the area of high compression at the end, can be replaced.
- a favorable development of the invention is characterized in that the openings of the segments expand conically towards the outer surface. This means that blockages in the openings can be largely avoided.
- a further favorable embodiment of the invention is characterized in that the segments each have a groove in the longitudinal direction. These grooves can be used specifically to prevent the feed material from rotating.
- An alternative embodiment of the invention is characterized in that the segments each have a particularly integrated strip in the longitudinal direction. These bars can also be used to prevent the feed material from rotating.
- the design made of cast or sintered material enables cost-effective production and allows for no further processing. This means that the drainage openings can also be cast, eliminating the need for time-consuming drilling.
- the material placed in the feed shaft for example wood chips, but also annual plants, straw, bagasse or the like, is guided through the screw spirals 13 of the screw 12 into the housing 10 and pressed through it, with liquid, usually water, which can also be mixed with chemicals , flows into the drain chamber 11 and is removed from there and, if necessary, recycled.
- liquid usually water
- MSD a highly compressed plug of material is also created, which in this case absorbs the impregnation chemicals when it relaxes.
- Due to the high compression of the feed material high wear occurs on the inside of the housing 10, so that these housings often have to be replaced or armored.
- One possibility is to remove the housing and make it usable again in a workshop through build-up welding and subsequent mechanical processing. This means that this part will not be available to the system operator as an emergency spare part for a long period of time.
- replaceable wear shells can be used. However, these have to be manufactured very precisely, which often results in problems with the fit.
- Fig. 2 shows a housing 10 according to the invention, which consists of an upper half-shell 15 and a lower half-shell 16. These have drainage openings 17, which can be arranged in groups as shown.
- the half-shells 15, 16 have flanges 18 and 18 'at their ends, with which the housing 10 is fastened to the feed shaft 9 on one side and to the container 14 on the other side.
- the two half-shells 15, 16 are held together with a number of screws 19.
- Segments 21, 22 are arranged within the half-shells 15, 16. Additional screws 20 are used to fasten these segments 21, 22 to the housing 10. All segments 21, 22 together form an inner tube in the housing 10. Shown here are 6 segments 21, 22 distributed around the circumference. However, depending on the diameter of the housing 10, fewer or more segments can be distributed around the circumference.
- the outer surface of the segments 21, 22 rests directly, ie without a gap, on the inner surface of the half-shells 15, 16 of the housing 10.
- Fig. 3 the lower half-shell 16 is shown. It has flanges 18, 18' at the ends.
- the individual segments 21, 22 have openings 23 for fastening using screws 20. You can see that different segments can be used here.
- the segments 21 have a groove 24 along their length, which serves to prevent substances from rotating.
- the number of segments 21 with groove 24 and segments 22 is selected based on the drainage behavior, but also the caking and thus carrying properties of the feed material.
- the use of segments 21 and 22 makes it possible to adapt the dewatering and transport of the feed material accordingly.
- segments 22' see Fig. 7
- segments 22' can be used with strips to prevent the feed material from being carried away.
- Three segments 21 and 22 arranged in a row are shown here in the longitudinal direction of the housing 10.
- the openings 25 of the segments 21, 22 correspond directly to the openings 17 of the half-shells 15, 16, that is, each opening 25 in a segment 21, 22 is assigned an opening 17 in a half-shell 15, 16 of the housing 10. This is achieved, among other things, by fastening using screws 20.
- the screws 20 are inserted from the inside, ie the interior of the cylinder formed by the segments 21, 22, and screwed on the outside using nuts.
- the heads of the screws 20 are, for example, elongated with a spherical cap so that they are always in the correct position in the correspondingly shaped openings 23.
- the screws 20 can also have recesses such as slots in the heads that are arranged on the inner (cylinder) surface of the segments 21, 22, which then form a plane due to the wear of the segments and the raised parts of the screw heads can be used as wear marks, which provide an indication of the necessary replacement of the segments 21, 22.
- the segments 21, 22 are cast from wear-resistant material, whereby all openings 25 can be manufactured in a simple manner without subsequent mechanical processing.
- the openings 25 can also be made conical very easily and do not have to be designed as stepped bores, which require frequent tool changes during production.
- the segments can also be sintered from wear-resistant material, which also offers the possibility of incorporating the openings 25 in a simple manner.
- contact surfaces 26 are created only on the long sides of the edges of the segments 21, 22 near the ends of the segments 21, 22, which must be slightly processed in order to ensure an exact fit of the individual segments 21, 22 .
- the arrangement of several segments 21, 22 in the longitudinal direction also makes it possible to replace only the segments with the greatest wear. With this type of inner lining of the housing, repairs can be carried out easily and in a short time on site.
- the invention is not limited by the drawings, in which slightly conical housings are shown.
- cylindrical housings and thus cylindrical segments can also be used.
- the housing could also consist of three or four parts.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Molecular Biology (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Paper (AREA)
- Filtration Of Liquid (AREA)
- Screw Conveyors (AREA)
- Processing Of Solid Wastes (AREA)
- Joints Allowing Movement (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Entwässern von schüttfähigem oder fließfähigem Aufgabegut, beispielsweise Holzhackschnitzel, durch dessen Verdichtung, mit einem Gehäuse mit einem Mantelrohr, in dem eine Welle mit umfangseitig umlaufenden Wendeln um eine Rotationsachse rotiert, wobei das Aufgabegut durch das Gehäuse transportiert und verdichtet wird und das Pressat durch Öffnungen im Mantelrohr aus der Vorrichtung geleitet wird und wobei ein Innenrohr vorgesehen ist, das Innenrohr aus Segmenten aufgebaut ist, die Öffnungen aufweisen, wobei die Segmente mit ihrer Außenfläche direkt an der Innenfläche des Mantelrohres aufliegen und die Öffnungen der Segmente die Öffnungen des Mantelrohrs überdecken, wobei die Öffnungen der Segmente einen kleineren Querschnitt aufweisen, als die Öffnungen des Mantelrohres.The invention relates to a device for dewatering pourable or flowable feed material, for example wood chips, by compacting it, with a housing with a casing tube in which a shaft with circumferential helices rotates about an axis of rotation, the feed material being transported and compacted through the housing and the pressate is led out of the device through openings in the jacket tube and an inner tube is provided, the inner tube is constructed from segments which have openings, the segments resting with their outer surface directly on the inner surface of the jacket tube and the openings of the segments the openings of the jacket tube, the openings of the segments having a smaller cross section than the openings of the jacket tube.
Derartige Vorrichtungen sind z.B. aus der
Ziel der Erfindung ist es eine Vorrichtung anzugeben, die deutlich kostengünstiger ist und die obigen Nachteile vermeidet.The aim of the invention is to provide a device that is significantly more cost-effective and avoids the above disadvantages.
Dieses Ziel wird durch eine Vorrichtung nach Anspruch 1 erreicht.This goal is achieved by a device according to claim 1.
Durch den Aufbau des Innenrohrs aus Segmenten werden die austauschbaren Teile kleiner und können leichter transportiert werden. Durch das direkte Aufliegen der Segmente an der Innenfläche des Mantelrohres werden diese Teile vollflächig unterstützt und können somit auch mit sehr geringen Wandstärken gefertigt werden. Auch können Mantelrohr und Segmente aus unterschiedlichen Materialien gefertigt werden, wodurch das Mantelrohr die Kräfte aufnehmen kann und die Segmente aus einem harten, spröden und damit verschleißfestem Material sein können. Durch die Ausführung als Guss-oder Sinterteil können die Segmente weitestgehend unbearbeitet bleiben. Es entfällt somit eine großflächige, kostenintensive Bearbeitung sowohl der Außen- als auch der Innenfläche. Auch können die Öffnungen mitgegossen werden, wodurch ein nachträgliches, aufwändiges, insbesondere auch spanabhebendes Bohren unnötig wird. Dadurch wird es auch möglich, härtere Materialien einzusetzen, die mit spanabhebenden Verfahren nicht mehr bearbeitet werden können. Durch die Übereinstimmung der Öffnungen der Segmente mit den Öffnungen des Mantelrohres wird eine optimale Entwässerung erzielt.By constructing the inner tube from segments, the replaceable parts become smaller and can be transported more easily. Because the segments rest directly on the inner surface of the casing tube, these parts are supported over the entire surface and can therefore also be manufactured with very small wall thicknesses. Casing pipe and segments can also be made from different materials, which means that the casing pipe can absorb the forces and the segments can be made of a hard, brittle and therefore wear-resistant material. By being designed as a cast or sintered part, the segments can remain largely unprocessed. This eliminates the need for large-scale, cost-intensive processing of both the external and internal surfaces. The openings can also be cast, which means that subsequent, complex drilling, especially cutting drilling, becomes unnecessary. This also makes it possible to use harder materials that can no longer be processed using machining processes. By matching the openings of the segments with the openings of the casing pipe, optimal drainage is achieved.
Eine günstige Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass das Mantelrohr zylindrisch ist, wobei es alternativ konisch sein kann. So kann die Vorrichtung günstig an die Bedürfnisse für die Produktion und die dafür erforderliche Schnecke angepasst werden.A favorable embodiment of the invention is characterized in that the casing tube is cylindrical, although it can alternatively be conical. In this way, the device can be conveniently adapted to the needs of production and the screw required for it.
Eine günstige Weiterbildung der Erfindung ist dadurch gekennzeichnet, dass das Innenrohr in Umfangsrichtung aus mindestens 4, vorzugsweise 6 - 8 Segmenten besteht. Dadurch können wenig verschlissene Bereich belassen und nur stärker verschlissene Bereiche getauscht werden.A favorable development of the invention is characterized in that the inner tube consists of at least 4, preferably 6 - 8 segments in the circumferential direction. This means that areas that are less worn can be left in place and only areas that are more heavily worn can be replaced.
Eine vorteilhafte Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass das Innenrohr in Längsrichtung, entsprechend der Richtung der Rotationsachse aus mindestens 2, vorzugsweise 3 - 4 bis zu 6 Segmenten besteht. Damit wird einerseits die Montage wesentlich erleichtert, andererseits können wenig verschlissene Bereich belassen und nur stärker verschlissene Bereiche, speziell im Bereich der hohen Verdichtung am Ende, getauscht werden.An advantageous embodiment of the invention is characterized in that the inner tube consists of at least 2, preferably 3 - 4 up to 6 segments in the longitudinal direction, corresponding to the direction of the axis of rotation. On the one hand, this makes assembly much easier, but on the other hand, little worn areas can be left and only more heavily worn areas, especially in the area of high compression at the end, can be replaced.
Eine günstige Weiterbildung der Erfindung ist dadurch gekennzeichnet, dass sich die Öffnungen der Segmente konisch in Richtung Außenfläche erweitern. Dadurch können Verstopfungen der Öffnungen weitgehend vermieden werden.A favorable development of the invention is characterized in that the openings of the segments expand conically towards the outer surface. This means that blockages in the openings can be largely avoided.
Eine weitere günstige Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass die Segmente jeweils eine Nut in Längsrichtung aufweisen. Diese Nuten können speziell zur Verhinderung der Mitrotation des Aufgabegutes eingesetzt werden.A further favorable embodiment of the invention is characterized in that the segments each have a groove in the longitudinal direction. These grooves can be used specifically to prevent the feed material from rotating.
Eine alternative Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass die Segmente jeweils eine insbesondere integrierte Leiste in Längsrichtung aufweisen. Diese Leisten können ebenfalls zur Verhinderung der Mitrotation des Aufgabegutes eingesetzt werden.An alternative embodiment of the invention is characterized in that the segments each have a particularly integrated strip in the longitudinal direction. These bars can also be used to prevent the feed material from rotating.
Speziell die Ausführung aus Guss- oder Sintermaterial ermöglicht eine kostengünstige Fertigung und erlaubt auf weitere Bearbeitungen zu verzichten. Dadurch können auch die Entwässerungsöffnungen mitgegossen werden, wodurch aufwändiges Bohren entfallen kann.In particular, the design made of cast or sintered material enables cost-effective production and allows for no further processing. This means that the drainage openings can also be cast, eliminating the need for time-consuming drilling.
Die Erfindung wird nun anhand der Zeichnungen beispielhaft beschrieben, wobei
-
Fig. 1 den grundsätzlichen Aufbau einer gattungsmäßigen Entwässerungsvorrichtung, -
Fig. 2 das Gehäuse einer erfindungsgemäßen Vorrichtung mit Innenrohr, -
Fig. 3 eine Halbschale der erfindungsgemäßen Vorrichtung, -
Fig. 4 eine Halbschale mit Darstellung der erfindungsgemäßen Segmente und deren Befestigung -
Fig. 5 eine Variante eines erfindungsgemäßen Segments, -
Fig. 6 eine weitere Variante eines erfindungsgemäßen Segments -
Fig. 7 eine zusätzliche Variante eines erfindungsgemäßen Segments
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Fig. 1 the basic structure of a generic drainage device, -
Fig. 2 the housing of a device according to the invention with an inner tube, -
Fig. 3 a half-shell of the device according to the invention, -
Fig. 4 a half-shell showing the segments according to the invention and their attachment -
Fig. 5 a variant of a segment according to the invention, -
Fig. 6 another variant of a segment according to the invention -
Fig. 7 an additional variant of a segment according to the invention
In
In
Um auch weitere mechanische Bearbeitungen einzusparen werden lediglich an den Längsseiten der Kanten der Segmente 21, 22 in der Nähe der Enden der Segmente 21, 22 Kontaktflächen 26 geschaffen, die geringfügig bearbeitet werden müssen, um einen exakten Sitz der einzelnen Segmente 21, 22 zu gewährleisten. Durch die Anordnung mehrerer Segmente 21, 22 in Längsrichtung wird auch ermöglicht, lediglich die Segmente mit dem größten Verschleiß auszutauschen. Mit dieser Art der inneren Auskleidung des Gehäuses kann eine Reparatur leicht und in kurzer Zeit vor Ort vorgenommen werden.In order to save further mechanical processing, contact surfaces 26 are created only on the long sides of the edges of the
In
Die Erfindung ist nicht durch die Zeichnungen beschränkt, in der leicht konische Gehäuse dargestellt sind. Es können z.B. auch zylindrische Gehäuse und damit zylindrische Segmente eingesetzt werden. Auch könnte bei größeren Durchmessern das Gehäuse aus drei oder vier Teilen bestehen.The invention is not limited by the drawings, in which slightly conical housings are shown. For example, cylindrical housings and thus cylindrical segments can also be used. With larger diameters, the housing could also consist of three or four parts.
Claims (9)
- Device for dewatering feedstock that is pourable or free-flowing, for example wood chips, by compressing it, comprising a housing (10) with a shell pipe (15, 16) in which a shaft with flights (13) running round its circumference rotates round an axis of rotation, where the feedstock is transported through the housing (10) and compressed and the pressate is conveyed out of the device through holes (17) in the shell pipe (15, 16), and where an internal pipe is provided, the internal pipe is built up from segments (21, 22) with holes (25), where the outer surface of the segments (21, 22) rests directly on the inner surface of the shell pipe (15, 16) and the holes (25) in the segments overlay the holes (17) in the shell pipe (15, 16), where the holes (25) in the segments (21, 22) have a smaller cross-section than the holes (17) in the shell pipe (15, 16), characterized in that each hole (25) in the segments (21, 22) is assigned to a hole (17) in the shell pipe (15, 16), wherein the holes (25) of the segments (21, 22) match up directly with the holes (17), i.e. each hole (25) in a segment (21, 22) is assigned to a hole (17) in the shell pipe (15, 16), and where the segments (21, 22) are made of wear-resistant cast or sintered material.
- Device according to Claim 1, characterized in that the shell pipe (15, 16) is cylindrical.
- Device according to Claim 1, characterized in that the shell pipe (15, 16) is conical.
- Device according to one of Claims 1 to 3, characterized in that the internal pipe comprises at least 4, preferably 6-8 segments (21, 22) in circumferential direction.
- Device according to one of Claims 1 to 4, characterized in that the internal pipe comprises at least 2, preferably 3-4 and up to 6 segments (21, 22) in longitudinal direction in accordance with the direction of the axis of rotation.
- Device according to Claims 1 to 5, characterized by the holes (25) in the segments (21, 22) becoming wider conically towards the outer surface.
- Device according to one of Claims 1 to 6, characterized in that the segments (21, 22) each have a groove (24) in longitudinal direction.
- Device according to one of Claims 1 to 6, characterized in that the segments (21, 22) each have a strip (27) in longitudinal direction, in particular an integrated strip.
- Device according to one of Claims 1 to 8, characterized in that the segments (21, 22) have openings (23) for fastening the segments (21, 22) with screws (20).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA51097/2016A AT518983B1 (en) | 2016-12-02 | 2016-12-02 | DEVICE FOR WASHING DEEP-WATERED OR FLUIDABLE SUPPLY MATERIAL |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3330068A1 EP3330068A1 (en) | 2018-06-06 |
EP3330068B1 true EP3330068B1 (en) | 2024-01-03 |
EP3330068C0 EP3330068C0 (en) | 2024-01-03 |
Family
ID=60201947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17199701.8A Active EP3330068B1 (en) | 2016-12-02 | 2017-11-02 | Device for dewatering bulk or flowable material |
Country Status (7)
Country | Link |
---|---|
US (1) | US10870250B2 (en) |
EP (1) | EP3330068B1 (en) |
CN (1) | CN108204715B (en) |
AT (1) | AT518983B1 (en) |
CA (1) | CA2987123C (en) |
EA (1) | EA036223B1 (en) |
MY (1) | MY190385A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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AT523264B1 (en) * | 2020-03-16 | 2021-07-15 | Andritz Ag Maschf | Process for the production of a sieve body and sieve |
EP3896217B1 (en) * | 2020-04-17 | 2023-06-07 | Cellwood Machinery AB | Apparatus and method for processing a suspension comprising organic material and liquid |
CN112611170A (en) * | 2020-12-16 | 2021-04-06 | 苏州嘉诺环境工程有限公司 | Dewatering equipment |
CN113442502A (en) * | 2021-08-10 | 2021-09-28 | 哈尔滨重齿传动设备有限公司 | Vertical briquetting machine |
CN113983764A (en) * | 2021-11-22 | 2022-01-28 | 上海牧融机械设备有限公司 | Spiral secondary extrusion dehydrator |
DK181177B1 (en) * | 2021-11-29 | 2023-03-27 | Haarslev Ind A/S | Cage opening assistant |
CN114198988B (en) * | 2021-12-29 | 2022-10-25 | 双胞胎(集团)股份有限公司 | A dewatering system for domestic animal feed ingredient |
CN114960252A (en) * | 2022-06-21 | 2022-08-30 | 汶瑞机械(山东)有限公司 | Line pressure adjusting mechanism for roller of double-roller pulp washer |
CN116080128B (en) * | 2023-04-10 | 2023-06-23 | 蓬莱京鲁渔业有限公司 | Fish meal processing grinder for fodder |
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DE46208C (en) * | 1888-06-15 | 1889-02-21 | M. EHRHARDT in Wolfenbüttel | NEW IN DOUBLE-WALLED CYLINDRICAL PREF-PLUGS FOR OIL SEEDS |
US2320765A (en) * | 1941-09-17 | 1943-06-01 | French Oil Mill Machinery | Expressing press |
DE830895C (en) * | 1949-05-26 | 1952-02-07 | Albert William Sizer | Device for extracting liquid from plastic materials, in which the material is pressed through a jacket with perforated walls by means of a conveyor screw or the like |
US2800072A (en) * | 1954-04-28 | 1957-07-23 | American Viscose Corp | Cylindrical press assembly |
US2910183A (en) * | 1955-05-31 | 1959-10-27 | Fmc Corp | Strainer |
US3093065A (en) * | 1957-11-25 | 1963-06-11 | French Oil Mill Machinery | Expressing press |
US3191521A (en) * | 1959-08-24 | 1965-06-29 | Coproducts Corp | Fluid expressing method |
US3982483A (en) * | 1975-04-25 | 1976-09-28 | Corral Industries, Inc. | Moisture reduction press |
DE2700542C3 (en) * | 1976-01-09 | 1981-08-27 | Somat Corp., Pomeroy, Pa. | Thickening filter for liquids containing solids |
SE416481B (en) * | 1977-05-02 | 1981-01-05 | Mo Och Domsjoe Ab | METHOD AND DEVICE FOR TREATMENT OF WOOD TIP FOR REMOVAL OF HEAVY METALS AND RESIN |
US4155299A (en) * | 1978-02-06 | 1979-05-22 | Somat Corporation | Screen for hydro-extractor |
US4297943A (en) * | 1979-12-10 | 1981-11-03 | Laurich Trost Victor | Cage assembly for press assembly |
WO1992013710A1 (en) * | 1991-02-12 | 1992-08-20 | Andritz Sprout-Bauer, Inc. | Adjustable compression screw device and components |
AT398090B (en) * | 1992-05-15 | 1994-09-26 | Andritz Patentverwaltung | DEVICE FOR SEPARATING LIQUID FROM SOLIDS-LIQUID MIXTURES WITH A SOLIDS RETENTION DEVICE AND DEVICE IN THE FORM OF A SCREW PRESS |
EP0685325B1 (en) * | 1994-05-04 | 1999-09-01 | SCHLEGEL, Dietrich, Dr. Ing. | Device for separating the liquid portion from the solid portion in two-phase systems |
CN2305280Y (en) * | 1997-06-25 | 1999-01-27 | 林清和 | Extruding filter in liquid |
DE60028187T2 (en) * | 1999-11-09 | 2007-03-29 | Ishigaki Co. Ltd. | SCREW PRESS |
ITTO20040109A1 (en) * | 2004-02-26 | 2004-05-26 | Vm Press Srl | WASTE COMPACTING MACHINE |
CN2719555Y (en) * | 2004-03-19 | 2005-08-24 | 白克微 | Multi stage combined spiral oil press |
DE202007007038U1 (en) | 2007-05-14 | 2007-10-25 | Pallmann Maschinenfabrik Gmbh & Co Kg | Device for dewatering pourable or pourable feed material by compaction |
KR20110027135A (en) * | 2009-09-09 | 2011-03-16 | 김종철 | Lattice aseembly body for oil press |
MX2014001263A (en) * | 2012-02-06 | 2014-11-10 | Dupps Co | High compression shaft configuration and related method for screw press systems used in rendering applications. |
-
2016
- 2016-12-02 AT ATA51097/2016A patent/AT518983B1/en active
-
2017
- 2017-11-02 EP EP17199701.8A patent/EP3330068B1/en active Active
- 2017-11-24 MY MYPI2017704509A patent/MY190385A/en unknown
- 2017-11-27 US US15/822,622 patent/US10870250B2/en active Active
- 2017-11-30 CA CA2987123A patent/CA2987123C/en active Active
- 2017-12-01 EA EA201792416A patent/EA036223B1/en not_active IP Right Cessation
- 2017-12-01 CN CN201711245816.0A patent/CN108204715B/en active Active
Also Published As
Publication number | Publication date |
---|---|
AT518983A4 (en) | 2018-03-15 |
MY190385A (en) | 2022-04-20 |
EA201792416A1 (en) | 2018-08-31 |
EA036223B1 (en) | 2020-10-15 |
BR102017024478A2 (en) | 2018-06-19 |
AT518983B1 (en) | 2018-03-15 |
EP3330068A1 (en) | 2018-06-06 |
EP3330068C0 (en) | 2024-01-03 |
US10870250B2 (en) | 2020-12-22 |
CN108204715A (en) | 2018-06-26 |
CN108204715B (en) | 2021-08-17 |
US20180154599A1 (en) | 2018-06-07 |
CA2987123A1 (en) | 2018-06-02 |
CA2987123C (en) | 2023-08-08 |
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